EASY
Earn 100

Define syngamy.

Important Questions on Modes of Reproduction

EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Angiospermic plants are characterised by
(i) Double fertilisation
(ii) Triploid endosperm
(iii) Diploid endosperm
Choose the correct option from the following regarding above statements?
HARD
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
An apple showing monosporic type of embryo sac development assumed to develop a fruit with 12 seeds. Find out the no. of chromosomes present in megaspore mother cell, functional megaspores, egg cells, synergids, antipodals, zygote and PEN
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?
HARD
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
What is triple fusion? Name the nuclei involved in triple fusion.
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
An angiosperm was identified with its endosperm of 6n. Assuming that this is a self-pollinating species, which one of the following is the correct ploidy of the parent?
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Describe the process of double fertilisation in angiosperms. What is its significance?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
In angiosperms, the development of male gametophyte takes place from ___________.
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
What is triple fusion? What are the nuclei involved in triple fusion?
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
The process of double fertilization is the
HARD
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction

What is double fertilization? Describe the process with diagrams from the stage of megaspore formation to zygote formation.

EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Function of filiform apparatus is to:
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
What is triple fusion? Write the significance of it.
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Amphimixis is:
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Define triple fusion. What is the product of this process?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Describe double fertilization diagrammatically.
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Why the process of fertilization in angiosperm is referred as double fertilization?
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
A flower with Tt genotype is cross - pollinated by TT pollens. What will the genotypes of the resulting endosperm and embryo, respectively, be?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Union of Pronuclei of the gametes is called ___.
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Double fertilization is exhibited by: